Exercise weight selection methods and apparatus

• US 6,746,381 B2
• Filed: 12/21/2000
• Issued: 06/08/2004
• Est. Priority Date: 12/21/1999
• Status: Active Grant

• Current Assignee: Bruno Intellectual Reserve, LLC
• Original Assignee: Mark Krull
• Inventors: Krull, Mark A.
• Primary Examiner(s): Lucchesi, Nicholas D.
• Assistant Examiner(s): Mathew, Fenn C
• Application Number:
  US09/745,823
• Publication Number:
  US 20010051566A1
• Time in Patent Office: 1,265 Days
• Field of Search: 482/106, 482/107, 482/108, 482/93, 482/97, 482/98
• US Class Current: 482/108
• CPC Class Codes: A63B 21/00065 by increasing or reducing the number of resistance units
• CPC Class Codes: A63B 21/0728 with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells
• CPC Class Codes: A63B 21/075 with variable weights , e.g. weight systems with weight selecting means for bar-bells or dumb-bells

Abstract

Exercise dumbbells have pairs of weights disposed at opposite ends of a handle. Selector rods are selectively movable into engagement with various combinations of the weights.

Claims

1. An exercise apparatus, comprising:

a force receiving member;

a weight holder operatively connected to the force receiving member;

at least three weight plates configured to occupy respective positions relative to the weight holder; and

means, including multiple movable members on the weight holder, for selectively connecting the weight plates to the weight holder in any combination while the weight plates occupy said respective positions.

2. The exercise apparatus of claim 1, wherein the force receiving member is a bar that is sized and configured for grasping in a person'"'"'s hand, and the weight holder is secured to a first end of the bar, and a second said weight holder is secured to an opposite, second end of the bar, and the at least three weight plates are selectively connected to the weight holder at the first end of the bar, and another said at least three weight plates are selectively connected to the second said weight holder at the second end of the bar.

3. The exercise apparatus of claim 1, wherein the at least three weight plates include at least one relatively heavier weight plate, and at least two relatively lighter weight plates, and a first one of the movable members is associated with the at least one relatively heavier weight plate, and a second one of the movable members is associated with the at least two relatively lighter weight plates.

4. The exercise apparatus of claim 3, further comprising a first user operated member connected to the first member and bearing indicia associated with connection of the relatively heavier weight plate to the weight holder, and a second user operated member connected to the second member and bearing indicia associated with connection of each of the relatively lighter weight plates to the weight holder.

5. The exercise apparatus of claim 4, wherein the indicia on the first user operated member aligns with the indicia on the second user operated member to indicate how much force is required to lift the force receiving member and any of the weight plates connected thereto.

6. The exercise apparatus of claim 5, wherein the indicia on the first user operated member indicates a tens digit portion of the force, and the indicia associated with the second user operated member indicates a ones digit portion of the force.

7. The exercise apparatus of claim 1, wherein adjacent said weight plates have opposing surfaces that face toward one another, and an axis extends perpendicular to said surfaces, and the means includes notches in radially outwardly facing edges of respective said weight plates, and the members are selectively movable parallel to the axis and into respective said notches to connect respective said weight plates to the weight holder.

8. The exercise apparatus of claim 7, wherein notches extend into radially inwardly facing edges of the members, and the notches in the members are selectively aligned with respective said weight plates to leave said weight plates disengaged relative to the weight holder.

9. The exercise apparatus of claim 1, wherein adjacent said weight plates have opposing surfaces that face toward one another, and an axis extends perpendicular to said surfaces, and the means includes notches in radially outwardly facing edges of respective said weight plates, and the members have eccentric portions that are selectively rotatable into respective said notches to connect respective said weight plates to the weight holder.

10. The exercise apparatus of claim 1, wherein adjacent said weight plates have opposing surfaces that face toward one another, and an axis extends perpendicular to said surfaces, and the means includes axially extending openings in respective said weight plates, and the members are selectively movable parallel to the axis and into respective said holes to connect respective said weight plates to the weight holder.

11. The exercise apparatus of claim 1, wherein one of the movable members is configured and arranged to intersect all of the weight plates.

12. An exercise dumbbell, comprising:

a handle that defines a longitudinal axis;

first and second weight holders connected to opposite ends of the handle;

a housing spaced radially apart from the handle and interconnected between the weight holders;

separate first and second sets of weight plates sized and configured to be supported by respective said weight holders; and

a unitary selector rod movably mounted inside the housing for movement into and out of intersecting, underlying engagement with a first weight plate in each of the sets of weight plates.

13. The exercise dumbbell of claim 12, wherein each of the sets of weight plates is confined to a respective one of the weight holders.

14. The exercise dumbbell of claim 12, wherein a respective notch extends into a radially outwardly facing edge of each said first weight plate, and the selector rod is selectively movable parallel to the longitudinal axis and into each said notch to connect each said first weight plate to a respective one of the weight holders.

15. The exercise dumbbell of claim 14, wherein notches extend into a radially inwardly facing edge of the selector rod, and are selectively movable into alignment with each said first weight plate to leave each said first weight plate disengaged relative to a respective one of the weight holders.

16. The exercise dumbbell of claim 12, wherein a respective notch extends into a radially outwardly facing edge of each said first weight plate, and the selector rod has a first eccentric portion that is selectively rotatable into the notch in one said first weight plate to connect the one said first weight plate to a respective one of the weight holders, and a second eccentric portion that is selectively rotatable into the notch in the other said first weight plate to connect the other said first weight plate to a respective one of the weight holders.

17. The exercise dumbbell of claim 12, wherein a respective opening extends axially through each said first weight plate, and the selector rod is selectively movable parallel to the longitudinal axis and into each said opening to connect each said first weight plate to a respective one of the weight holders.

18. The exercise dumbbell of claim 12, wherein each of the sets of weight plates includes one said second weight plate, and further comprising a second said selector rod movably mounted inside a second said housing for movement into and out of underlying engagement with each said second weight plate.

19. The exercise dumbbell of claim 12, wherein each of the sets of weight plates includes one said second weight plate, and the selector rod is movable into and out of underlying engagement with each said second weight plate.

20. The exercise dumbbell of claim 12, further comprising a latching means for latching the selector rod against unintentional movement relative to the weight holders.

21. A method of moving a variable amount of weight for exercise purposes, comprising the steps of:

providing a force receiving member;

operatively connecting a weight holder to the force receiving member;

providing a set of at least three weight plates sized and configured to be supported by the weight holder;

movably connecting a first selector rod to the weight holder for movement into and out of engagement with a first subset of the weight plates;

providing a first user operated member that bears indicia associated with engagement and disengagement of the first subset of the weight plates;

connecting the first user operated member to the first selector rod;

movably connecting a second selector rod to the weight holder for movement into and out of engagement with a complementary, second subset of the weight plates;

providing a second user operated member that bears indicia associated with engagement and disengagement of the second subset of the weight plates;

connecting the second user operated member to the second selector rod;

operating the first user operated member to move the first selector rod relative to the weight holder and selectively engage and disengage the first subset of the weight plates; and

operating the second user operated member to move the second selector rod relative to the weight holder and selectively engage and disengage the complementary, second subset of the weight plates.

22. The method of claim 21, wherein the indicia on the first user operated member is arranged to align with the indicia on the second user operated member to indicate how much force is required to lift the force receiving member and any of the weight plates connected thereto.

23. The method of claim 22, wherein the indicia on the first user operated member indicates a tens digit portion of the force, and the indicia associated with the second user operated member indicates a ones digit portion of the force.

24. The method of claim 23, wherein the first user operated member is operated to adjust the force in increments of ten pounds;

and the second user operated member is operated to adjust the force in increments that are a fraction of ten pounds.

25. A method of moving a variable amount of weight for exercise purposes, comprising the steps of:

providing a force receiving member;

operatively connecting a weight holder to the force receiving member;

providing a set of at least three weight plates sized and configured to be supported by the weight holder;

movably connecting a first selector rod to the weight holder for movement into and out of engagement with only a first subset of the weight plates;

movably connecting a second selector rod to the weight holder for movement into and out of engagement with only a complementary, second subset of the weight plates;

moving the first selector rod relative to the weight holder to selectively engage and disengage the first subset of the weight plates;

moving the second selector rod relative to the weight holder to selectively engage and disengage the complementary, second subset of the weight plates; and

latching at least one said selector rod in a latched position intersecting at least one of the weight plates in each said subset.

26. The method of claim 25, wherein the force receiving member is provided with a handle that is sized and configured for grasping in a person'"'"'s hand, and that defines a longitudinal axis, and further comprising the step of lifting the handle for exercise purposes.

27. The method of claim 26, wherein first and second weight supports are connected to respective ends of the handle and define a distance therebetween, at least one said selector rod spans the distance at all times.

28. The method of claim 26, wherein each said selector rod remains parallel to the longitudinal axis throughout each said moving step.

29. The method of claim 26, wherein the weight holder is connected to a first end of the handle, and another said weight holder is connected to an opposite, second end of the handle, and the at least three weight plates are sized and configured to be supported by the weight holder at the first end of the handle, and a second set of at least three more weight plates is provided to be supported by the second weight holder at the second end of the handle.

30. The method of claim 29, wherein each of the weight plates at the first end of the handle cooperates with a respective one of the weight plates at the second end of the handle to define a respective weight pair, and each said weight pair is simultaneously engaged and disengaged by a respective said selector rod.

31. The method of claim 26, wherein the first selector rod spans at least one of the weight plates in the second subset at all times.

32. The method of claim 26, wherein at least one said selector rod spans all of the weight plates at all times.

33. The method of claim 26, wherein at least one said selector rod spans less than all of the weight plates at all times.

34. An exercise apparatus, comprising:

a force receiving member;

a weight holder operatively connected to the force receiving member;

at least three weight plates configured to occupy respective positions relative to the weight holder, wherein the at least three weight plates include a relatively heavier weight plate, and two relatively lighter weight plates; and

multiple movable members on the weight holder, including a first movable member that is selectively movable into engagement with only the heavier weight plate, and a second movable member that is selectively movable into engagement with only the lighter weight plates.

35. The exercise apparatus of claim 34, wherein the second movable member and the heavier weight plate are configured and arranged to accommodate overlap thereof in a vertical plane without engagement of the heavier weight plate by the second movable member.

36. The exercise apparatus of claim 35, wherein the first movable member and the lighter weight plates are configured and arranged to accommodate overlap thereof in a discrete vertical plane without engagement of the lighter weight plates by the first movable member.